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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cloud Native Application Delivery | 8% | - Deployment Strategies
|
| Topic 2: Kubernetes Fundamentals | 46% | - Containers
|
| Topic 3: Cloud Native Architecture | 16% | - Cloud Native Landscape
|
| Topic 4: Cloud Native Observability | 8% | - Logging
|
| Topic 5: Container Orchestration | 22% | - Storage
|
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NEW QUESTION # 148
Which of the following is a responsibility of the governance board of an open source project?
Answer: B
NEW QUESTION # 149
A request for 500 mebibytes of ephemeral storage must be specified in a YAML file. How should this be written?
Answer: D
Explanation:
In Kubernetes, resource quantities must be expressed using specific, well-defined units. When requesting ephemeral storage, Kubernetes follows the same quantity format rules as other resources such as memory.
These rules distinguish between binary units (base-2) and decimal units (base-10), and the correct unit must be used to avoid configuration errors or unintended resource allocation.
The term mebibyte (MiB) is a binary unit equal to 2²# bytes (1,048,576 bytes). Kubernetes represents mebibytes using the suffix Mi with a capital "M" and lowercase "i". Therefore, a request for 500 mebibytes of ephemeral storage must be written as 500Mi, making option A the correct answer.
Option B, 500mi, is incorrect because Kubernetes resource units are case-sensitive. The lowercase mi is not a valid unit and will be rejected by the API server. Option C, 500m, is also incorrect because the suffix m represents millicpu when used with CPU resources and has no meaning for storage quantities. Using m for ephemeral storage would result in a validation error. Option D, 0.5M, is incorrect because M represents a decimal megabyte (10# bytes), not a mebibyte, and Kubernetes best practices require binary units for memory-based resources like ephemeral storage.
Ephemeral storage requests are typically defined under the container's resources.requests.ephemeral-storage field. Correctly specifying the unit ensures that the scheduler can accurately account for node storage capacity and enforce eviction thresholds when necessary.
In summary, Kubernetes requires precise, case-sensitive units for resource specifications. Since the question explicitly asks for 500 mebibytes, the only valid and correct representation is 500Mi, which aligns exactly with Kubernetes resource quantity conventions.
NEW QUESTION # 150
What function does kube-proxy provide to a cluster?
Answer: A
Explanation:
kube-proxy is a node-level networking component that helps implement the Kubernetes Service abstraction.
Services provide a stable virtual IP and DNS name that route traffic to a set of Pods (endpoints). kube-proxy watches the API for Service and EndpointSlice/Endpoints changes and then programs the node's networking rules so that traffic sent to a Service is forwarded (load-balanced) to one of the correct backend Pod IPs. This is why B is correct.
Conceptually, kube-proxy turns the declarative Service configuration into concrete dataplane behavior.
Depending on the mode, it may use iptables rules, IPVS, or integrate with eBPF-capable networking stacks (sometimes kube-proxy is replaced or bypassed by CNI implementations, but the classic kube-proxy role remains the canonical answer). In iptables mode, kube-proxy creates NAT rules that rewrite traffic from the Service virtual IP to one of the Pod endpoints. In IPVS mode, it programs kernel load-balancing tables for more scalable service routing. In all cases, the job is to connect "Service IP/port" to "Pod IP/port endpoints." Option A is incorrect because Ingress is a separate API resource and requires an Ingress Controller (like NGINX Ingress, HAProxy, Traefik, etc.) to implement HTTP routing, TLS termination, and host/path rules.
kube-proxy is not an Ingress controller. Option C is incorrect because general node egress management is not kube-proxy's responsibility; egress behavior typically depends on the CNI plugin, NAT configuration, and network policies. Option D is incorrect because API access control is handled by the API server's authentication/authorization layers (RBAC, webhooks, etc.), not kube-proxy.
So kube-proxy's essential function is: keep node networking rules in sync so that Service traffic reaches the right Pods. It is one of the key components that makes Services "just work" across nodes without clients needing to know individual Pod IPs.
=========
NEW QUESTION # 151
If kubectl is failing to retrieve information from the cluster, where can you find pod logs to troubleshoot?
Answer: D
Explanation:
Pod logs on the node are typically stored under /var/log/pods/, which can be accessed to troubleshoot issues when kubectl cannot retrieve logs directly from the cluster.
NEW QUESTION # 152
The Kubernetes project work is carried primarily by SIGs. What does SIG stand for?
Answer: B
Explanation:
In Kubernetes governance and project structure, SIG stands for Special Interest Group, so A is correct.
Kubernetes is a large open source project under the Cloud Native Computing Foundation (CNCF), and its work is organized into groups that focus on specific domains-such as networking, storage, node, scheduling, security, docs, testing, and many more. SIGs provide a scalable way to coordinate contributors, prioritize work, review design proposals (KEPs), triage issues, and manage releases in their area.
Each SIG typically has regular meetings, mailing lists, chat channels, and maintainers who guide the direction of that part of the project. For example, SIG Network focuses on Kubernetes networking architecture and components, SIG Storage on storage APIs and CSI integration, and SIG Scheduling on scheduler behavior and extensibility. This structure helps Kubernetes evolve while maintaining quality, review rigor, and community-driven decision making.
The other options are not part of Kubernetes project terminology. "Software Installation Guide" and the others might sound plausible, but they are not how Kubernetes defines SIGs.
Understanding SIGs matters operationally because many Kubernetes features and design changes originate from SIGs. When you read Kubernetes enhancement proposals, release notes, or documentation, you'll often see SIG ownership and references. In short, SIGs are the primary organizational units for Kubernetes engineering and stewardship, and SIG = Special Interest Group.
NEW QUESTION # 153
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